Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Knock from €198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Knock departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. to Knock

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
14:03 - 12:25
IAD
-
NOC
17h 22m2 stops
British Airways Logo
13:00 - 19:55
NOC
-
IAD
11h 55m1 stop
€585British Airways
Fri, 20 Feb - Fri, 27 Feb
British Airways Logo
18:20 - 12:25
IAD
-
NOC
13h 05m1 stop
British Airways Logo
13:00 - 20:55
NOC
-
IAD
11h 55m1 stop
€599British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
11:30 - 12:25
IAD
-
NOC
19h 55m2 stops
British Airways Logo
13:00 - 16:35
NOC
-
IAD
31h 35m1 stop
€604British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
15:11 - 12:25
IAD
-
NOC
16h 14m2 stops
British Airways Logo
13:00 - 20:30
NOC
-
IAD
35h 30m2 stops
€612British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
09:18 - 12:25
IAD
-
NOC
22h 07m2 stops
British Airways Logo
13:00 - 15:35
NOC
-
IAD
31h 35m2 stops
€622British Airways
Fri, 20 Feb - Fri, 27 Feb
British Airways Logo
17:05 - 12:25
IAD
-
NOC
14h 20m2 stops
British Airways Logo
13:00 - 16:35
NOC
-
IAD
31h 35m2 stops
€623British Airways
Sat, 7 Mar - Sun, 15 Mar
British Airways Logo
18:20 - 12:25
IAD
-
NOC
13h 05m1 stop
British Airways Logo
13:00 - 16:35
NOC
-
IAD
31h 35m2 stops
€624British Airways
Sat, 7 Mar - Sun, 15 Mar
British Airways Logo
18:20 - 12:25
IAD
-
NOC
13h 05m1 stop
British Airways Logo
13:00 - 20:55
NOC
-
IAD
11h 55m1 stop
€627British Airways
Sat, 7 Mar - Sun, 15 Mar
British Airways Logo
18:20 - 12:25
IAD
-
NOC
13h 05m1 stop
British Airways Logo
13:00 - 15:35
NOC
-
IAD
31h 35m1 stop
€640British Airways
Fri, 20 Feb - Fri, 27 Feb
Aer Lingus Logo
19:20 - 12:25
IAD
-
NOC
13h 05m1 stop
Aer Lingus Logo
13:00 - 20:55
NOC
-
IAD
11h 55m1 stop
€769Aer Lingus
Sat, 21 Mar - Fri, 27 Mar

British Airways flights from Washington, D.C. to Knock

Our best British Airways deals on Washington, D.C. to Knock flight tickets
British Airways
20 Feb
IAD14:03Washington, D.C. Dulles Intl
17h 22m
2 stops
NOC12:25Knock Intl
27 Feb
NOC13:00Knock Intl
11h 55m
1 stop
IAD19:55Washington, D.C. Dulles Intl
€585
Find similar
British Airways
4 Mar
IAD18:20Washington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
11h 55m
1 stop
IAD20:55Washington, D.C. Dulles Intl
€599
Find similar
British Airways
4 Mar
IAD11:30Washington, D.C. Dulles Intl
19h 55m
2 stops
NOC12:25Knock Intl
8 Mar
NOC13:00Knock Intl
31h 35m
1 stop
IAD16:35Washington, D.C. Dulles Intl
€604
Find similar

Aer Lingus flights from Washington, D.C. to Knock

Our best Aer Lingus deals on Washington, D.C. to Knock flight tickets
Aer Lingus
21 Mar
IAD19:20Washington, D.C. Dulles Intl
13h 05m
1 stop
NOC12:25Knock Intl
27 Mar
NOC13:00Knock Intl
11h 55m
1 stop
IAD20:55Washington, D.C. Dulles Intl
€769
Find similar
Aer Lingus
24 May
IAD17:15Washington, D.C. Dulles Intl
14h 20m
2 stops
NOC12:35Knock Intl
30 May
NOC13:05Knock Intl
31h 40m
2 stops
IAD15:45Washington, D.C. Dulles Intl
€937
Find similar
Aer Lingus
24 May
IAD17:40Washington, D.C. Dulles Intl
13h 55m
1 stop
NOC12:35Knock Intl
30 May
NOC13:05Knock Intl
31h 40m
2 stops
IAD15:45Washington, D.C. Dulles Intl
€954
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Knock that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 7 January 2026.
Use the filters below to find and compare flights from Washington, D.C. to Knock that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Fri 20/2

14:03-12:25

2 stops17h 22m

Knock Intl

Fri 27/2

13:00-19:55

1 stop11h 55m

€585

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 4/3

18:20-12:25

1 stop13h 05m

Knock Intl

Sun 8/3

13:00-20:55

1 stop11h 55m

€599

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 4/3

11:30-12:25

2 stops19h 55m

Knock Intl

Sun 8/3

13:00-16:35

1 stop31h 35m

€604

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Wed 4/3

15:11-12:25

2 stops16h 14m

Knock Intl

Sun 8/3

13:00-20:30

2 stops35h 30m

€612

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Fri 20/2

09:18-12:25

2 stops22h 07m

Knock Intl

Fri 27/2

13:00-15:35

2 stops31h 35m

€622

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sat 7/3

17:05-12:25

2 stops14h 20m

Knock Intl

Sun 15/3

13:00-16:35

2 stops31h 35m

€623

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sat 7/3

18:20-12:25

1 stop13h 05m

Knock Intl

Sun 15/3

13:00-16:35

2 stops31h 35m

€624

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sat 7/3

18:20-12:25

1 stop13h 05m

Knock Intl

Sun 15/3

13:00-20:55

1 stop11h 55m

€627

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Fri 20/2

18:20-12:25

1 stop13h 05m

Knock Intl

Fri 27/2

13:00-15:35

1 stop31h 35m

€640

Washington, D.C.Knock

IAD - NOC

IADNOC

Washington, D.C. Dulles Intl

Sat 21/3

19:20-12:25

1 stop13h 05m

Knock Intl

Fri 27/3

13:00-20:55

1 stop11h 55m

€769

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Knock from

How to get the cheapest flight ticket from Washington, D.C. to Knock

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Knock Intl?

British Airways is the most popular carrier operating from Washington, D.C. to Knock Intl

When to book flights from Washington, D.C. to Knock

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Knock according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Knock (WAS to NOC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Knock

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Washington, D.C. to Knock takes 12h 20m
There are no direct flights from Washington, D.C. to Knock. There are no popular flight routes from Washington, D.C. to Knock.
Search flight deals

  • How far is Washington, D.C. to Knock Intl by plane?

    Washington, D.C. and Knock Intl are 5256.3 km apart from one another. Typically, this will take 12h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. to Knock Intl Airport?

    Prices for flights from Washington, D.C. to Knock Intl Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. to Knock Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Knock Intl Airport.

  • What documentation or ID do you need to fly to Knock Intl Airport?

    The travel and health documents required for your trip to Knock Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Knock Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Knock?

Book flights to Knock if you plan to visit one of these locations
Sligo
Westport
Carrick-on-Shannon
Belmullet

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Knock?

Finding the right flight to Knock from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knock quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Knock with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Knock on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Knock?

Once all potential Washington, D.C. to Knock flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Knock right now. Can momondo alert me if prices change?

Price alerts on flights to Knock from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Knock trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 6/2
Fri 13/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland